Book fastener



June 5, 1928 Q S. J. STRID DOOR FASTENERv v Original Filed Dec. 2.

1920 2 sheets-sheet 1 S. J. STRID DOOR FASTENER June 5, 192a. Re. 16,987

Original Filed Dem 2 1920 2 sh t -she t 2 V /v ljigd I of the doors, thereby making it extremely ing door to which Reissued June 5, 1928.

v UNITED SLTATE SVEN J. STBID, OF CHICAGO,

"rumors, assrenoa, BY IESNE assmmnmrs, r0,

W. H. MINER, INC., A CORPORATION OI DELAWARE.

DOOR FASTENEB.

Original No. 1,439,385,'dated December 18, 1922; Serial No. 427,818. flled; December 8, 1M0. Application tor reissue filed August 9, 1924.. Serial 1T0. 731,180.

This invention relates to-improvements in door fastener.

In railroad refrigerator cars, the almost universal practice is to employ spring pressed packing at the joints in order to obtain as hermetic a'seal as possible when the doors are in closed position. count of the spring pressed packing or insulation, considerablepressure is required to force the doors to fully closed position and also to initiate the opening movements. Very frequentl moisture collects on the insulation and tlien freezes around the edges difiicult to open the doors. It is therefore of prime importance in an operating mechanism for doors of refrigerator cars, that the mechanism be adapted to exert great force in both the final closing movements and also in the beginningof the opening movements of thedoors. Furthermore, due to limitations of maximum over-all width of any car employed on a railroad, it necessarily follows that, in order to the maximum width and carrying capacity of the refrigerator car body proper, the mechanism applied to the outside of the door should extend or project, outwardly therefrom a minimum distance to thereby avoid injury when the refrigerator car passes another car or any stationary object along the roadway.

As is well known, refrigerator cars are loaded and unloaded from platforms which are generally made substantially flush with or slightly lower than the car floor 'in order to facilitate the trucking in and out of the load. In most door 0 crating devices for refrigerator cars hereto ore employed, a portion of the mechanism has extended several inches belowthe bottom edge of the swing it is applied so that, in attempting to swing the door back and forth over a platform flush or even a few inches below the car floor level, difiiculty has been experienced frequently necessitating the chopping away of portions of the platform to provide the necessary. clearance for the mechanism.

One object of my invention is to provide an eflicient, durable and strong mechanism for hinged or swinging doors, and more especially for refrigerator car doors where great pressure is required in efiecting the On ac-v permit of .a beveled lintel 14. The

and B, eac

final closing and of the door. T

Other objects. of the invention are to providea mechanism of the character indicated in the preceding paragraph so designed that the mechanism may be easily operated either from a loadingplatform or by the operator initial opening movements when standing on the ground; to provide a mechanism of the general character hereinbefore indicated so arranged that the mechanism will avoid projecting below-the lower edge of the movable door on which the mechanism is mounted for more' than approximately an inch whereby the door may be readily swung back and forth over a loading platform, which is positioned aninch or two below the level of the car floor. 7 In the drawings forming a part of this specification, Figure 1 is a side elevational view of a portion of a refrigerator car showmg my improvements employed in connection-therewith. Figure 2 is a vertical sectional view correspo'nding substantially to the line 2'2 of Figure 1 and showing the refrigerator door in fully closed position.

Figure is a view similar to Figure -2but illustrating the position of one of the doors and the operating mechanism associated I therewith corresponding to either the initial engagement of the gears with the racks to effect final closure of the door or the final engagement between the gears and the keeper racks at the end of the forced opening movement. And Figure 4 is a detail, elevational view. illustrating a somewhat different embodiment of the invention.

Referring first to the construction illustrated in Figures 1 to 3 inclusive, the car wall is indicated at 10, in which is provided the usual side door opening of generally rectangular form as indicated at 11. As customary, said door opening is .definedby a threshhold 12, side door osts 13-13 and where it may be soheld-by a pivoted latch oor shown is of As willbe understood 15 and the other door member- B;is finally closed by the operating mechanism, as he re-.

inafter described. It s customary in refrlgeratorlcais, to provide spring pressed pack ing or insulation around the two ,vertical sides and top edge of the door and also between thebeveledfmeetin' edges of the ,two,

door members A'and B: he most common form of said spring pressed dpacking isindi cated at 16 in Figures 2 an w Inicarrying out. my I invention,

braekets'- D"D,*='secured to the door member B; a pair of segmental gears pivotally attached to the brackets D; a central bracket F'secured to the door" member B; an opera ating handle or lever G pivotally mounted i on thebrac'ketF; and links H and J extendingrbetween-the lever G and the gears E-E.

he keepers C.C. are secured to the car wall on theouter side thereof. immediately above and-immediately'belo'w the top and bottom-edges, res ectively, of. the door mem- "ber B,:at points airlyrclose to the free edge plurality.

of'the door member B, as clearly indicatedin Figure -'1.' The members C-C extend perpendicularly outwardly from the car wall and each has a short horizontally extending toothed rack 17-17, it :being observed from an inspection of Figures 2 and 3 that the teeth-1750f the upper rack or keeper. G extend :toward or face the teeth of the lower keeper C. Each keeper C. is furthermore provided at-its outer end with a shoulder 18 for the purpose hereinafter described. The brackets 1)D are preferably of like construction and each is secured to the door member VB latsuch. a point that it will be brought into vertical alinement with the keeper C whenthe door member B is in closed or approximately closed position.

.One of-the' members D' is located adjacent l the top edge and the other adjacent the lower edge of the, door member B as clearly indicated in the drawing. Each member'D, is secured-in position-by any suitable means, asfor: instance lag screws and is rovided with a pair of outwardly extende spaced flanges 19-19 between which is accommodated the corresponding segmental gear E.

The-latter are mounted on suitable pivot pi-ns-,20}in.-vsuch a way as to a'dapt the segmental gears E to oscillate or rotate about axes extending; horizontally and parallel to -the outer face of the door member B. Each of the segmental gears E is provided with a of teeth 21 adapted to co-operate with theteeth' 17 in effecting the final closu rerand initial opening of thev door member B.= In addition, each gear E is formed with a radially extended shoulder 22 thatextends from the axis of the gear E a greater of the teeth 21. Said adapted to engage the respective shoulders 18 of the keepers C as indicated in Figure 3,

that is, in, such a way as to permit the teeth end of said link J is is slightly below Taking into consideration 'the scale em- 21 of the gears passing by the outer ends of the keepers but so positioned thatsaid teeth 21 are ope'ratively engaged or meshed with the teeth 17 of the keepers.

I In other words, the shoulders 22 of the segmental gears E act to insure proper registration of the gears and racks.

.Said bracket F has also a pairof outstanding spaced arms 2323 between which is pivotally mounted the lever G on the horizontally extending pivot 24. The bracket F may be cut away at its center and the doorproper'undercut as indicated at 25 in ures 2 and 3 so as to for the swinging movements of the inner end of the lever G. Said lever G, at its Fig lower free end, is offset as indicated at 26 to provide a hand grip which will bespaced .from the lower link J when the door is in closed position as indicated in Figure 2.

The link H is pivotally connected to the lever G as indicated at 27 and the upper end of said link is pivotally connected to the uper segmental ear E as indicated at 28.

he lower link f top end to the innermost end of the lever'G as indicated at 29 in Figure 3 and the lower pivotally connected as indicated at 30. With the arrangement 'ust described, it is obvious that the lever is adapted to swing in a plane perpendicular to the face'of the doormember B and when so swung, the segmental gears E will be simultaneously operated but in reverse directions, that is, one gear E will be rotated in a clockwise and the other simultaneously in a counter-clockwise direction so that the having a plate adapted to engage with a notch 33- formed in an carriedby the lower link J. In this manis pivotally connected at its provide ample clearance outstanding flange 34 ner, it is obvious that the lever G cannot be swung away from the door until the latch plate 31 is swung out of position with respect to the notch 33. To provide for'the usual lead seal, the 'latch 31 may perforatedas indicated at 35 and the flange 34 correspondingly perforated as indicated at 36, said perforations being in register when the lever G is in closed position.

In Figure 3 I have illustrated by dotted lines 37 a loading platform, the top of which the floor level of the car.

ployed on the drawing,

one inch below the v ber B.

floor level and itwill be noted that the lower segmental gear E will clear said platform in the swinging movements of the door mem- Some railroads prefer that the operating handle for a door mechanism swing in a respond to the links H and J shown in the the face of the door member;

other figures, and it will be seen that thesegmental gears, remain the same. r

Instead of showing a lever mounted as shown in Figures 2 and 3, however, the lever keepers and brackets will G is pivotally mounted on a stud or. axis 124 which extends perpendicular to the face ofthe door member so that said lever G is itself adapted to swing in a plane parallel to is formed with oppositely extendedfflan es 38 and 39 in line'with the pivot 124 to which the links H and J are respectivel pivot allv attached as indicated at 12mm, "1.29. a

The door mechanism illustrated in Fig ure'4 ma be'locked inclosed position b any suita 1e means as for. instance 'alatc 131, pivotally'attached to the lever-G as in' said latch"131.being adapted dicated at 132, toengage' over a flange 134 formed on a bracket 40 secured to the face of the door I have alined to accomm member. The l'atch 131-and flangev 134 may erforations as indicated at 135 ate the usual lead seal.

Due to the fact that the door member B swings about a vertical. axis during the operation of; the door mechanism, the teeth 17 and, 21 will preferably 'be' tapered radially with the pivotal axis of the door member B as a center but, in view of the fact that said taper is so small, I have not deemed it necessary to illustrate the same in detailin the drawings.

I have herein shown and described what .I now consider the preferred manner of carryin out the invention but the same is mere y illustrative, changes and modifications that come within the scope of the claims appended hereto. I claim: I 1. In a refrigerator car having a door opening and a door hinged to swing about a fixed axis at one of its vertical edges, the combination withupper and lower toothed keepers secured to the outer face of the car wall above, and below said door opening, respectively, the teeth of the keepers projecting toward each'other; of gears pivotally mounted-on said door near its edges at the top and bottom thereof, said pivotally mounted gears being located to engage said keepers when the door is in closed and nearly closed position; and manually operable The lever G."

and I contemplate all.

means for rotating said gears about their respective pivots while in engagement with said keepers to thereby efiect final closing and initialopening movements of the door. 2. In a refrigerator car having a door opening and a door hinged to swing about a fixed axis at one of its vertical edges, the

combination with upper and lower toothed keepers secured to the outer face of the car wall above and below said door opening, re-,

spectively, the teeth .of the keepers projecting toward each other; of gears pivotally mounted on said door near its edges at the I top and bottom thereof, said pivotally mounted gears being located to engage said keepers When the door 'is in closed and nearly closed position; and manually oper-. able means for rotating said gears about their respective pivots while in en agement with said keepers to thereby effect nal closing and initial opening movements ofthe door, said means'including, a lever pivotally mounted on the door intermediate said gearsv and a link connection between said ever and-each gear.

3.'-In a door operating mechanism of the character described, the combination with a member having a door opening and avdoor hinged to swing about one of. its vertical edges; of upper and lower toothed-keepers secured to the outer face of said member above and below the door .opening, the teeth of said keepers extending toward each other;

of upper and lower brackets secured to said door near its free edge and adjacent the top and bottom thereof; a gear pivotally mounted in. each of said brackets and adapted to swing about a horizontal axis extending parallel to the face of said door, said gears being arranged to engage-said keepers when the door is in closed and nearly closedposition; and manually operable means for effecting rotation of said gears simultaneously about their respective axes.

4. In a refrigerator car having a door opening and a doorhinged to swing about one of its vertical edges, the combination with upper and lower toothed keepers secured to the outer face of the car wall above said door opening, the teeth of the keepers extending toward each other; of gears pivotally mounted on said door near its edges at the top and bottom thereof, said pivotally mounte gears being located to engage said keepers when the door is' in closed and nearly closed position; and manually operable means for rotating said gears about'their respective pivots while in engagement with said keepers to thereby eifect final closing and initial opening movements of the door, each of said gears having a radially extending shoulder adapted to initially engage the outer end of the corresponding keeper to insure proper registration of the gears and toothed keepers.

5. In a refrigerator car having a door opening and} door hinged :to swing about one of its vertical edges, the combination 7 vwith upper and lower toothed kee cured to the outer face of the car-wa above said door opening, the teeth of the keepers extending toward each other; of gears pivotally mounted 01188.1(]. door near 1ts ed s V at the top and'bottomthereof, said plvot ly mounted; ears being located to engage said keepers w en the door =is in closed and: nearly closed position; manually operable means for'rotating said gears about their respective pivots while in engagement with'said-keepers tothereby' effect final; closing and initial openingmovements of the door, said-means including a lever pivotally mounted on the .door{i 'rx termedia'te said gears and a link con- .nectionbetweensaid lever andeach gear;

and- (:o-o'peratin lever random said links. s 6."In'fa' refrigerator car having a door '-''opening locking devices on said and a door for. closing said opening,.the combination with upper and lower keepers-secured to the car wall adjacent said oor opening; of upper and lower door actuating members plvotally mounted on said door for movement in reverse directions, in a plane at an angle to the plane of the door, said members each having a portion grojecting beyond the adjacent edge of the oor adapted for engagement with the corres nding'keeper to impart movement to .sai door in' opening andcloslng d rections;

and operating means tor simultaneously actuating said members to oscillate the latter about their respectivepivots.

7. In a refrigerator car having a door opening and a rectangular and means for simultaneously door ;for closing a saidropening, said door being hinged at one of, ed es to swing about. a fixed arms; of a pair of door actuating elements fpivotally mounted on the door .near the rec edge thereof opposite to said hinged edge, one of said members being disposed adjacent each of the remaining two edges of said rectangular door, each of said members having its pivotalaxis disposed at an angle to the axis on whi'chsaid door is hinged; an extension on each of said members projecting beyond the corresponding edge of the door; and'a pair of keepers. mounted on the side wall of fixed axis; ofmeans for actuating said door to force the same open or tightly closed,'said means including a plurality of keepers and a corresponding number of co-operating pivoted door moving members engageable therewith, said members having; shouldered engagement with the keepers either in door opening or closing movement of said members; and means for simultaneously operating said members, said members being mounted on said door adjacent'opposed free edges thereof and having their pivot axes angularly disposed with reference to the axis about which said door swings.

' SVEN J. strain. 

